Connecter for typewriter erasers and brushes



Mandi 17; 1925. 1,530,309

J'. DURKIN CONNECT!!! FOR TYPEWRITER ERASERS AND BRUSHES File d Jan. 25 1923 Jams mrfiz'iz Patented Mar. 17, 1925.

UNITED STATES PATENT OFFICE.

JAMES nunximor PITTSBURGH, PENNSYLVANIA.

I vApplication filed January 25, 1923. Serial No. 614,805.

To aZZw/wmz't may concern:

Be it known that I, JAMES DURKIN, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Connectors for Type-writer Erasers and Brushes, of which the following is a specification.

The present invention relates to connecters for typewriter erasers and brushes and is designed primarily to provide means for releasably engaging these two elements.

Objects of this invention are to provide means of simple construction which effectively retain an eraser and brush in'close proxim-it for convenient use by a typist; to provi e means for releasably connecting the eraser and brush to permit replacement of either of the latter Without inconvenience and at a minimum expense; and to provide inexpensive means of this character which may be manipulated with facility by a typist and will avoid wastage of a portion of the eraser as is now customary.

(lo-ordinate objects of the invention will be apparent from the following description of the present preferred form of the invention taken in connection with the accompanying drawings, wherein Fig. 1 is a side elevational view of a device constructed in accordance with the present invention illustrating the application thereof with an eraser and brush;

Fig. 2 is a longitudinal sectional view of the same;

Fig. 3 is a perspective view of one of the eraser and brushing clamping plates;

Fig. 4 is a perspective view of the type of brush employed in the present invention; and

Fig. 5 is a detail enlarged fragmentary elevational view of the conneeter.

The invention consists especially ofa pair of complemental plates 5 each of which is of substantially oblong configuration with one terminal 6 thereof enlarged and provided with a circular margin, this terminal embracing a face of an eraser 7 The opposite end of each plate has the marginal edges thereof bent inwardly at right angles to provide a brush retaining flange 8. In close proximity to the free terminals of the flange 8, portions of the lateral margins of each plate are extended andbent inwardly to provide ears 9 which are apertured. The ears 9 of one plate overlap the ears of the other plate and are pivotally connected to-v gether by a pin 10 which extends through the apertures of said ears.

, Theterminal end 6 of each plate is provided with an opening 11, which registers with the usual central opening formed in a typewriter eraser. The plates embrace the opposite faces of the typewriter eraser in a manner similar to the method in which the eraser is embraced by circular plates, at the present time. Suitable means is employed for securing the eraser from displacement which at the same time will permit the eraser to be rotated so as to permit equal usage of the latter completely around its periphery. In the present instance, a threaded male and female connection is employed. This connection consists of a female member 12 the shank of which is tubular and extends completely through both plates as well as the eraser, as shown in Fig. 2.

The shank has an enlarged head 13 formed on one end thereof in which a kerf isformed to facilitate disengagement of the connection when desired. The male member of said connection is indicated at 14 and coniprises a threaded shank 15 which engages the inner periphery of the tubular shank of the female member and is equipped with a relatively large head 16 provided with a kerf therein. This form of means for connecting the plates with the eraser is practical and incumbersome although it is to be understood that other means may be employed which are equally practical and adaptable for use in this connection. 7 I

The type of brush employed in the present invention is preferably of the construction shown in Fig. 4.- consisting of a head 17 of rectangular configuration with bristles 18 issuing from one of the margins thereof. The head 17 is adapted for engagement between the plates 5 at the end opposite to that which embraces the eraser 7. The head is held from displacement by the flanges 8, the latterhaving portions thereof removed at one end to permit projection of the bristles -18 therethrough. The margins of the reduced portions of the flange embraces the bristles 18 at the jointure of the latter with the head 17 The pivot pin 10 may be of any desired construction, but by preference the pin is formed from a strand of wire one end of which is convoluted to provide an eye 19 which is adapted to be engaged by one end of a cord 20'to permit attachment of this device to the typewriter, to prevent loss or misplacement of the eraser and brush.

.In use of this invention the ends 6 of the plates are first urged together causing the plates to move on the pin 10 as an axis and causing the brush engaging ends of the plates to be separated. Thebrush head 17 can then be urged between the plates in an apparent manner following which the eraser '7 may be inserted between the ends 5 of the plates and secured there'between in a manner heretofore described. The eraser, besides being revoluble to permit even usage thereof is also removable "from between the plates so that the eraser may be used in its entirety. ihe eraser may be quickly replaced at a very small expense. The brush, too, may be quickly removed when desired and replaced at a relatively small expense.

Various changes may be made in this device especially in the details of construction, proportion and arrangement of parts within the scope of the appended claims.

l hat is claimed is 1- 1. A combined brush and eraser holder including a pair of hingedly connected plates adapted to receive an eraser therebetween at one end, fastening means extending through said plates and eraser to rotatably and detachab'ly support the eraser between the plates, and flanges formed on the plates to hold the brush from displacement.

2. Means for connecting a typewriter eraser and brush including plates having the eraser and brush mounted therebetween, marginal flanges torni-edon said plates to retain the brush from displacement, the plates being pivotally connected together to permit compression of the same, when the eraser is removed; to release the brush.

3. Means for connecting a typewriter eraser and brush including pivota'lly connected plates having the eraser and brush mounted there-between, extensions formed on said plates to prevent displacement of the brush, and means to secure the eraser be tween the plates, said means being disengageable from said plates and eraser to per mit removal of the eraser and compression of the plates 'for releasing the brush.

at. A device as described including a pair of plates .hingedly connected intermediate their ends and adapted to clamp an object therebetween at each end of the plates, means extending through said plates and through one of said objects to rotatably support the latter and to clamp the plates into engagement with said objects, and right angled flanges formed on said plates to hold the other object from displacement.

JAMES DURKIN. 

